Cage-partition plate for crushers



Dec. 26, 1922. 1,439,872.-

.w.;.',M' DAVIDSON. CAGE PARTITI Q N PLATE FOR CRUSHERS.

"FEED sm. :1. 1922.

' rr n, j winniaiu DAVIDSON, or s'r;

or iuissouan .,l V, g r a a; i

I lVEISSOURI, ASSIGNOR TG WILLIAMS PATENT CRUSHER ANDPULVEBIEEBCOIVIPANY, OF ST. LOUIS,YMISSOURI, A CORPORATION oaen-rnn'rirron "PLATErota oaus inns.

Application filed September 11, 1922. SeriallNo. 587,433.

To all whom it may concern:

Be it known that I, VVILLIAH SON, a citizen of the United States,residing at St. Louis, State of Missouri, have invented certain new anduseful Improvements in Cage-Partition Plates for Crushers, of which thefollowing is a specification. This invention relates to certain'new anduseful improvements in cage partition plates for crushers. Thepeculiarities of which will be hereinafter fully described and claimed.

The main object of my invention is to provide partitions for the cage ofa crusher or like machine having rotary pivoted hammers, whichpartitions will divide up the length of the cage into compartments ofsuitable length so that mats of tangled or intertwined material, such assteel turnings, delivered to the hopper, will be held. back and tornapart by the hammers before such material can enter said compartments,and will be prevented from matting together again as the material isfurther reduced on thecage; and secondly, to secure such plates at adjustable positions on the cage.

In the accompanying drawing on which like reference numerals indicatecorresponding parts, Fig. 1 represents a sectional elevation across theshaft of a crusher embodying my invention; Fig. 2, a plan view of themachine shown in Fig. l with the cover removed, the discs in section andpartly broken away to show the cage below; Fig. 3, a detail enlargedview of my plate partition; and

i Fig. 4, a sectional view on the line 2-2 of Fig. 3. v

The numeral 3 designates the casing of a suitable crusher having a rotorshaft 4 mounted therein and carrying hammer mounts in the form of discs5 supporting hammer rods 6 on which are pivoted suitable rotary hammers'7, the outer ends of which operate in a cylindrical plane of the hantmer circle 8. The casing has a hopper 9,

the lower end of whichpreferably has a.

breaker plate 10 adjacent to acage of bars 11 with alternating openings,or other form of cage,-and extending from the breaker plate to the rearend of the cage which is preferably near thehorizontal plane through theaxis of the rotor.

Secured to the cage or otherwise mounted,

M. DAY] 0- I is a partition, or plurality of partitions 12, extendingfrom the front end of the cage near the bottom of the hopper, preferablyto the rear end of thecage or otherwise, so as to divide the length ofthe cage into compartments. These partitions are preferably in the formof smooth arcuate plates located in planes parallel to the planes ofrevolution of the hammers, and extending from the cage inward toward thediscs lying in the same plane, and having their inner edge preferablyadjacent to the outer edge of the respective discs. These plates thusextend 1 within the cylindrical planes of the hammer clrcle, and thehammers rotate in the compartments thus formed. The front edge 13 ofeach partition plate is adjacent to the lower end of the hopper and thefront end of the cage, and is substantially radial to the axis of theshaft so as tocheck mats of tangled material delivered from the hop pertil'l'they can be torn apart by the hammers and be further reduced onthe cage.

Suitable means to secure said plates in position are employed,'such asbolts M the heads of which engage matching openings near the outer edgeof the respective plate and pass outward through the openings of thecage and have a washer15' and nut on each bolt by which it firmly holdsthe plate in position against the cage in any posi tioii lengthwise ofthe cage to which it may be ad usted, in order to vary the size of thecompartment; Thus when the plate is half said shaft, rotary hammersmounted on said discs, a cage, a plurality of smooth arcuate platepartitions disposed in planes between the planes of revolution ofadjacent hammers and extending from said cage inward closely adjacent tothe edge of adjacent discs and from the front of said cage substantially to the rear end thereof, and means to secure said partitionsat variable distances apart on said cage.

2-. A crusher comprising rotary hammers, a cage having openings, smootharcuate partitions disposed parallel to the planes of revolution of saidhammers and having outwardly projectingfilugs forming shoulders engagingadjacent openingslin said cage;- and means to secure said partitions tosaid cage.

3. A crusher comprising rotary hammers, a cage having openings smootharcuate plates forming partitions disposed parallel to the planes ofrevolution of said hammers the hammer circle, and means to fasten saidplates,said means consisting of bolts of a 7 diameter substantially thethickness of said platesv and}v having flattened heads and mounted inmatching openings in the plates near the outer edge thereof so as toproject through the, adjacent openings of sai dcage a d d p e til-.1 3se ure Put-Side. l the cage, substantially as described have aflixe d myI'n testimony :Whereof I ners-W WILLIAM M. DAVIDSON.

